2021 Mercedes-Benz G 550 Technical Service Bulletins

132 technical service bulletins (TSBs) are on record for the 2021 Mercedes-Benz G 550. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10249482Jan 24, 2024Steering. The steering wheel generates grinding noises between the steering wheel and steering column switch module during steering maneuvers See example file in the attachments area: Lenkrad-Schleifgeräusch_SteeringWheel-GrindingNoises.mp4 The plastic cover on the back of the steering wheel is not positioned correctly and may therefore rub against the steering column switch module Please use the following noise files for…
• 10248195Dec 7, 2023Electrical system. Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY19-23 A-Class, C-Class, CLA, CLS, E-Class, EQB, G-Class, GLA, GLB, GLC, GLE, GLS, AMG GT, S-Class (177, 205, 118, 257, 213, 238, 243, 463, 247, 253, 167, 290, 217, 222 platform) vehicles, the communication module system software does not correspond with the latest series production configuration.
• 10248162Dec 4, 2023Seats. Crease formation on genuine leather seat covers in vehicles with low mileage • Objects left on the seats for extended periods of time (pressure marks). • Objects wedged between the seat backrest and seat cushion (e.g. seat belt buckle). • Light initial creases due to vehicle handling. • Light creases in the outer covers originating from the production process (missing finish). Heat treatment of…
• 10248212Dec 1, 2023Electrical system, Engine cooling. In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA, LLC ("MBUSA") is extending the warranty coverage on the engine thermostat (including software update) installed in certain Model Year ("MY") vehicles (with engines M176, M177, M178) listed below from the original New Vehicle Limited Warranty of 4 years/50,000…
• 10244837Oct 10, 2023Electrical system. The "SOS nonfunctional" message appears sporadically in the instrument cluster of the vehicle. The fault code B129C00 is stored in the control unit log. The message occurs in particular after the vehicle has been non-operational for an extended period of time; the message then disappears of its own accord after a few minutes. No functional limitation to the emergency call system is to be expected. Software error in…
• 10241527Aug 28, 2023Electrical system. Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2018-2023 C-Class, EQE, EQE SUV, EQS, EQS SUV, GLC, GLE and S-Class (206, 295, 294, 297, 296, 254, 167 and 223 platform) vehicles, the communication module software does not correspond with the latest series production configuration. The update is free of charge and will be carried out in the background.
• 10241530Aug 25, 2023Engine cooling. Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year 2021 C-Class (205 platform), CLA (118 platform), G-Class (463 platform), GLC (253 platform), GLA (247 platform) and GLE/GLS (167 platform) vehicles, the installed ignition coils may not correspond to current specifications. As a result, a misfire could occur, followed by potentially reduced engine…
• 10231032Jan 5, 2023Latches, locks and linkages, Electrical system. Complaint Tailgate opens unintentionally. Cause Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. E.g. when stored in trouser pocket, handbag etc. Remedy As of the 6th generation, the vehicle key can be recoded so that the tailgate no longer opens as a result of a long press on the button, but by double-clicking on the button instead.
• 10228807Dec 1, 2022Steering. Complaint Height adjustment of electric steering column adjustment jammed in the top/bottom adjustment position (e.g. with Easy Entry function). Cause Height adjustment moves to the top/bottom limit stop and jams.
• 10222461Sep 12, 2022Steering. Complaint Height adjustment of electric steering column adjustment jammed in the top/bottom adjustment position (e.g. with Easy Entry function). Cause Height adjustment moves to the top/bottom limit stop and jams. Remedy There are 2 repair procedures to follow depending on vehicle (differentiated according to model and vehicle manufacturing date) 1. Replace repair kit for steering column height adjustment 2…
• 10217157Jul 14, 2022Electrical system, Equipment, Steering. Complaint Height adjustment of electric steering column adjustment jammed in the top/bottom adjustment position (e.g. with Easy Entry function). Cause Height adjustment moves to the top/bottom limit stop and jams. 1. Steering column height adjustment transmission 2. Seat control unit software Remedy There are 2 repair procedures to follow depending on vehicle (differentiated according to model and vehicle…
• 10217162Jul 7, 2022Electrical system, Equipment. Complaint Customer may have one or more of the following complaints: • Vehicle location is shown incorrectly in the Navigation Display • Navigation destination search is not possible • Street names are not shown in Navigation display • Apple Carplay is inoperable Cause Improper installation of navigation map data Remedy Follow these steps to delete and re-install map data: • Re-format an empty USB drive…
• 10217148Jul 7, 2022Engine cooling, Equipment. Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year 2021 CLA (118 platform), GLE/GLS (167 platform), C-Class (205 platform), E-Class (213 platform), GLA (247 platform), GLC (253 platform), AMG GT (290 platform) and G-Class (463 platform) model series vehicles, the installed ignition coils may not correspond to current specifications.
• 10217149Jul 1, 2022Engine cooling, Equipment, Electrical system. Complaint Engine does not restart after ECO stop. All indicator lights come on in instrument cluster. Engine can be restarted normally with ignition switch. Fault codes P1CE200, P1D0500, or P1CDF00 may be stored in powertrain control unit N127. Cause ME control unit software Remedy Inspect the following: 1-12V battery using XENTRY battery tester 2-Connections at 12V battery 3-Circuit 30 and 50 connections at…
• 10214979Jun 16, 2022Latches, locks and linkages. Complaint Difficult to open the rear-end (tailgate) door with the door handle. Cause The link rod between the door lock and the central locking actuator motor may jump out when locking the vehicle. Remedy 1. Remove door trim of rear-end door AR72.20-P-6615XG 2. Only partially loosen dampening from the rear-end door (replace if damage is present) 3. Replace link rod that has sprung out (see picture 2 and parts note)…
• 10209887Mar 23, 2022Visibility (wipers, defrost, mirrors). Complaint Creaking noise from the upper area of the instrument panel when driving off-road (see Video 1). This noise can also occur after conducting repair work on the refrigerant circuit. Cause A refrigerant line may be twisted when mounted in the engine compartment (see Picture 1, orange line) which can lead to the generation of a creaking noise on the air conditioner box. The noise may be heard in the interior…
• 10209882Mar 14, 2022Body and structure. Complaint A metallic buzzing/background noise in the door whenever the sound system is active may be heard. Cause The cause could be the window lifter cable. It is possible that this cable vibrates at low frequencies and strikes the window lifter frame intermittently. Remedy Replace window lifter frame at door subject to complaint of a metallic background noise.
• 10209879Mar 10, 2022Electrical system. Complaint Windshield heater not activating when expected. Note: Windshield heater is only active with the engine running when the defrost button has been activated and outside temperatures are below 41°F (5°C). Cause Stone chippings on the windshield may result in an increased internal resistance of the electric windshield heater. When detecting increased internal resistance, the N22/1 "Air conditioning system"…
• 10209878Mar 9, 2022Electrical system, Body and structure. Complaint It may not be possible to unlock the vehicle with the key. There may also be a complaint regarding water entry at the roof. Fault codes that concern the antenna module may be stored in the fault memory of the KEYLESS-GO control unit. Cause A crack may have developed in the roof panel at the rear left roof luggage carrier pan (see picture 1) which may lead to water entry and a possible unexpected behavior…
• 10208738Feb 10, 2022Electrical system. Customer states Check Engine Light is on. Related to alternator and charge status of battery. Update PTCU Software if available
• 10206077Dec 8, 2021Engine cooling. "MY15+ M278 and M157 Equipped Vehicles with Fault Code ""P023400 – Boost Pressure is Too High"" "
• 10206062Dec 1, 2021Electrical system. "Creaking or scratching noise heard through speakers during gear shifts "
• 10205418Oct 15, 2021Equipment. New service campaign launch information.
• 10205803Aug 27, 2021Equipment. The mobile phone address book may not be transferred completely to the multimedia system COMAND, Audio 20, or MBUX. The contact list may not be fully populated and in some instances, the call list will display telephone numbers but no names.
• 10205798Aug 10, 2021Latches, locks and linkages, Body and structure. Difficult to open the rearend tailgate door with the door handle.
• 10205788Aug 3, 2021Suspension. When driving over speed limiters, speed bumps or rough roads;knocking noises may be heard from the rear area of the vehicle.
• 10195223Apr 23, 2021Brakes, Equipment. Brake squeal at front axle
• 10191291Mar 24, 2021Brakes. Brake squeal at front axle
• 10191280Mar 2, 2021Engine cooling. When accelerating at low speeds (slow roll at < 9 mph, 2nd gear), the engine limp-home mode may be triggered which in turn limits the amount of power available. When a fault occurs, the fault message ESP off or a fault message from the driver assistance systems is displayed. The quick test shows that fault code P061B62 is stored Note: It is possible to continue driving slowly. The fault is reset after an…
• 10187789Jan 8, 2021Transmission and drivetrain, Electrical system, Engine cooling. When accelerating at low speeds (slow roll at less than 9 mph, 2nd gear), the engine limp-home mode may be triggered which in turn limits the amount of power available. When a fault occurs, the fault message ESP off or a fault message from the driver assistance systems is displayed. The quick test shows that fault code P061B62 is stored Note: It is possible to continue driving slowly. The fault is reset after an…
• 10186146Dec 19, 2020Visibility (wipers, defrost, mirrors). G-MOPF2018: Front wiper motor makes noise
• 10205154Aug 5, 2016Engine cooling, Other or unknown. Gasket may settle causing a slight oil leak.

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